1 / 17

PACS Instrument Intermediate Design Review (IIDR)

PACS Instrument Intermediate Design Review (IIDR). OGSE. Reinhard Katterloher. Optical Ground Support Equipment (OGSE). PACS OGSE consists of different cryostats, several cryogenic beam conditioning optics and infrared sources (i.e. OGSE –0, -1, -2, -3, -4)

marcia-hester
Download Presentation

PACS Instrument Intermediate Design Review (IIDR)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. PACS Instrument Intermediate Design Review (IIDR) OGSE Reinhard Katterloher OGSE

  2. Optical Ground Support Equipment (OGSE) • PACS OGSE consists of different cryostats, several cryogenic beam conditioning optics and infrared sources (i.e. OGSE –0, -1, -2, -3, -4) • OGSE 0 for FPU alignment/verification is under design and will be provided by KT/MPE • OGSE 1, 2 and 4 are required for detector module testing (will be provided by MPE, MPIA and LENS) • OGSE 3 and 4 are required for instrument performance verification and on-ground wavelength calibration (will be provided by MPE and LENS) • Use of the various OGSEs is required from June 01 – July 05 OGSE

  3. OGSE 1 for Detector Module Performance Testing • OGSE 1 consists of a cryostat, optics and cryogenic BB source, it provides IR-background and signals within later operational range of photon flux • OGSE 1 will be located at MPE (2x) and at MPIA (1x) • MPE optics version „FIRSA“ was in use for EM1 – 6 tests and will be replaced by OGSE 1 before QM, FM, FS module testing starts • OGSE 1 is currently under final assembly (ready end March 01) • OGSE 1 is designed for simultaneous tests on 4 resp. 7 modules (depending on the electronics set-up used) OGSE

  4. OGSE 1 OGSE

  5. OGSE 1 OGSE

  6. OGSE 2 for Detector Module #8 spectral and proton-irradiation Tests • OGSE 2 consists of a LHe-dewar with optics (providing the right IR-background) and will be combined with • a tunable infrared source (OGSE 4) for the spectral investigations on the Ge:Ga pixels • OGSE 2 will be located at LENS for this test  • a 100 MeV proton source for the high energy particle spike (transient) investigations • OGSE 2 will be located at PSI for this test • OGSE 2 is under manufacture (ready July 01) OGSE

  7. OGSE2 OGSE

  8. OGSE 2 OGSE

  9. OGSE 3 for instrument characterization Performance test and calibration activities with OGSE 3 will comprise: • Sensitivity calibration of the photometer and spectrometer sections of PACS • Wavelength calibration of PACS spectrometers • Characterization of spectral and spatial instrumental profiles for point sources • Use of other external sources (e.g. gas cell) in addition to TUFIR • OGSE 3 consists of a big test cryostat, telescope simulator, optics, BB and a window to feed-in outside cryostat IR-sources (OGSE 4 and others) • during functionality/performance testing (ILT1, ILT2) the optics and the cryogenic BB is used (OGSE 3 will be located at MPE) • during final wavelength calibration (ILT3) the optics and the tunable IR-source TUFIR is used (OGSE 3 will be located at LENS) • OGSE 3 is currently under design (preliminary concepts are shown), it has to be ready for use July 02 OGSE

  10. PACS Test Cryostat with OGSE 3 OGSE

  11. Top view of test cryostat and optical beam of PACS FPU and telescope simulator OGSE

  12. Side view of test cryostat and optical beam of PACS FPU and telescope simulator OGSE

  13. OGSE 3 Schematic OGSE

  14. OGSE 3 Conceptual Design OGSE

  15. OGSE 4 TUFIR Wavelength Calibrator • The tunable IR-source TUFIR is based on a third order mixing of coherent radiation emitted by two carbon dioxide lasers and microwaves generated by a synthesizer on a metal-insulator-metal diode. A complete coverage of the FIR spectral range is provided. The spectral calibration requirements for PACS are defined in PACS-ME-PL-003. • OGSE 4 is located at LENS • OGSE 4 is operational, adaptation of the beam to the specific needs of PACS is necessary (ILT3 test activities start May 03) OGSE

  16. OGSE 4 Schematic representation of the TUFIR wavelength calibrator for PACS OGSE

  17. Cryogenic Blackbody Source (above) and example of anIncandescent Line Source combined with a Water Vapour Absorption Cell (below) OGSE

More Related